Production of activated carbon from fast pyrolysis biochar and the detoxification of pyrolytic sugars for ethanol fermentation

Fast pyrolysis of red oak wood yields approximately 10–30 wt% biochar, which is considered a low value co-product. Production of high value activated carbon using steam was investigated at different activation conditions. The relationship between activation parameters, surface area and revenue was evaluated using response surface methodology. A second degree model showed a maximum economic benefit at 800°C with 5 minutes of steam activation, resulting in $907 of net revenue per metric ton of biochar.

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Catalytic fast pyrolysis of walnut shell for alkylphenols production with nitrogen-doped activated carbon catalyst

Frontiers of Environmental Science & Engineering ◽

10.1007/s11783-020-1317-y ◽

2020 ◽

Vol 15 (2) ◽

Author(s):

Shanwei Ma ◽

Hang Li ◽

Guan Zhang ◽

Tahir Iqbal ◽

Kai Li ◽

...

Keyword(s):

Activated Carbon ◽

Fast Pyrolysis ◽

Walnut Shell ◽

Carbon Catalyst ◽

Catalytic Fast Pyrolysis ◽

Nitrogen Doped

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Catalytic Activity of Char Obtained from Fast Pyrolysis in Esterification Reactions

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.320.193 ◽

2021 ◽

Vol 320 ◽

pp. 193-197

Author(s):

Daniela Godina ◽

Ralfs Pomilovskis ◽

Kristine Meile ◽

Nadežda Iljina ◽

Aivars Zhurinsh

Keyword(s):

Catalytic Activity ◽

Activated Carbon ◽

Sulfuric Acid ◽

Activated Charcoal ◽

Chemical Activation ◽

Fast Pyrolysis ◽

Pyrolysis Process ◽

Biomass Processing ◽

Esterification Reactions ◽

Potential Use

In this study different pathways for obtaining activated carbon with catalytical activity were analysed. Industrially fast pyrolysis is an efficient way of lignocellulosic biomass processing, since in this process various important high value chemicals are obtained. Biochar is obtained as the by-product in fast pyrolysis process from which activated carbon can be acquired with further chemical activation. Different methods for chemical activation of biochar were tested with the obtained activated charcoals being used as a catalyst in esterification reactions to evaluate their potential use as a heterogenic catalyst. Highest catalytical activity was observed when biochar was pre-treated with sulfuric acid at 80 °C for 24 hours. The obtained activated charcoal could be used as a catalyst for up to five times with no noticeable decrease in catalytic activity.

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Enhanced production of 4-ethyl phenol from activated carbon catalyzed fast pyrolysis of bagasse with 9,10-dihydroanthracene as a hydrogen donor

Journal of Analytical and Applied Pyrolysis ◽

10.1016/j.jaap.2020.104880 ◽

2020 ◽

Vol 150 ◽

pp. 104880

Author(s):

Qiang Lu ◽

Guan Zhang ◽

Zhen-xi Zhang ◽

Hu Bin ◽

Kai Li

Keyword(s):

Activated Carbon ◽

Fast Pyrolysis ◽

Hydrogen Donor ◽

Enhanced Production

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Phenol-rich bio-oil derivation via microwave-induced fast pyrolysis of oil palm empty fruit bunch with activated carbon

Environmental Technology & Innovation ◽

10.1016/j.eti.2020.101291 ◽

2021 ◽

Vol 21 ◽

pp. 101291

Author(s):

Rubia Idris ◽

William Woei Fong Chong ◽

Atikah Ali ◽

Sidah Idris ◽

Mohd Faizal Hasan ◽

...

Keyword(s):

Activated Carbon ◽

Oil Palm ◽

Fast Pyrolysis ◽

Empty Fruit Bunch ◽

Bio Oil

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Production of Phenolic Compounds from Low Temperature Catalytic Fast Pyrolysis of Biomass with Activated Carbon

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.541-542.190 ◽

2014 ◽

Vol 541-542 ◽

pp. 190-194 ◽

Cited By ~ 1

Author(s):

Zhi Bo Zhang ◽

Xiao Ning Ye ◽

Qiang Lu ◽

Chang Qing Dong ◽

Yong Qian Liu

Keyword(s):

Activated Carbon ◽

Phenolic Compounds ◽

Fast Pyrolysis ◽

Product Distribution ◽

Catalytic Performance ◽

Gas Chromatography Mass Spectrometry ◽

Pyrolysis Process ◽

Pyrolysis Gas ◽

Catalytic Fast Pyrolysis ◽

Pyrolysis Of Biomass

Activated carbon (AC) was reported as a promising catalyst to selectively produce phenolic compounds from biomass using the micro-wave assisted catalytic pyrolysis technique. In order to evaluate the catalytic performance of the AC under the traditional fast pyrolysis process, analytical pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) technique was applied for the catalytic fast pyrolysis of biomass mixed with the AC. Polar wood was selected as the feedstock, and experiments were conducted to reveal the AC-catalyzed poplar wood pyrolysis behavior and product distribution. The results indicated that the AC was also effective for the phenolics production in the traditional fast pyrolysis process at 350 °C. It could promote the formation of phenolic compounds, and inhibit most of the other pyrolytic products. The maximal phenolics yield was obtained at the biomass to catalyst ratio of 1:4, with the peak area% over 50%.

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